全文获取类型
收费全文 | 9301篇 |
免费 | 424篇 |
国内免费 | 189篇 |
专业分类
财政金融 | 1109篇 |
工业经济 | 547篇 |
计划管理 | 1460篇 |
经济学 | 2007篇 |
综合类 | 1322篇 |
运输经济 | 81篇 |
旅游经济 | 44篇 |
贸易经济 | 1506篇 |
农业经济 | 404篇 |
经济概况 | 1434篇 |
出版年
2024年 | 30篇 |
2023年 | 187篇 |
2022年 | 150篇 |
2021年 | 232篇 |
2020年 | 320篇 |
2019年 | 285篇 |
2018年 | 220篇 |
2017年 | 257篇 |
2016年 | 297篇 |
2015年 | 268篇 |
2014年 | 548篇 |
2013年 | 780篇 |
2012年 | 687篇 |
2011年 | 806篇 |
2010年 | 580篇 |
2009年 | 549篇 |
2008年 | 653篇 |
2007年 | 585篇 |
2006年 | 580篇 |
2005年 | 475篇 |
2004年 | 348篇 |
2003年 | 243篇 |
2002年 | 162篇 |
2001年 | 144篇 |
2000年 | 89篇 |
1999年 | 58篇 |
1998年 | 24篇 |
1997年 | 30篇 |
1996年 | 12篇 |
1995年 | 13篇 |
1994年 | 7篇 |
1993年 | 6篇 |
1992年 | 4篇 |
1991年 | 6篇 |
1990年 | 2篇 |
1988年 | 1篇 |
1987年 | 1篇 |
1985年 | 59篇 |
1984年 | 53篇 |
1983年 | 42篇 |
1982年 | 32篇 |
1981年 | 27篇 |
1980年 | 27篇 |
1979年 | 13篇 |
1978年 | 12篇 |
1977年 | 10篇 |
排序方式: 共有9914条查询结果,搜索用时 343 毫秒
191.
G.D. Hancock 《Review of Financial Economics》2005,14(2):173-186
This paper addresses a gap in traditional portfolio literature by providing techniques for identifying returns on non-traditional portfolios.Futures contracts require daily cash flows over the holding period; these cash flows determine the rate of return. The security deposit represents a tied investment since the funds are not available for other uses and do not earn a risk adjusted return. To initiate a short option or a short stock position also requires a cash outflow. The cash outflow or equity deposit effectively constitutes an investment since the trader postpones consumption in a risky medium that does not guarantee the return of the funds.By identifying the amount of the investment and rates of returns, it is possible to extend normative investment analysis to non-traditional portfolio holdings. This paper introduces four propositions to aid in this process. 相似文献
192.
Foreign ownership and foreign management are often assumed to improve the efficiency of emerging market banks. Our article examines this relationship for the Vietnamese strategic partner program, where foreign banks have been allowed to take minority stakes in local banks. We add to the existing literature by distinguishing between ownership by foreign strategic and non-strategic investors, and between foreign management sent by the strategic partner and independent foreign executives. We show that only the presence of independent foreign executives has a positive impact on banks. We interpret these results as the consequence of conflicts of interest and power struggles between local shareholders and the strategic partner, which prevent efficiency in enhancing technology transfer. 相似文献
193.
While recent research into foreign direct investment (FDI) has focused on examining the importance of institutions, corruption, money laundering, and tax havens, the role of globalization on FDI has not yet been explored. This research investigates the impacts of globalization on outward FDI. We find that both overall globalization and its economic and social dimensions significantly positively influence outward FDI flows. We also demonstrate that beyond the level of globalization, corruption, money laundering, and the status of a country as a tax haven, cross-country similarity also plays an important role. Accordingly, policies specifically designed to increase the transparency of outward FDI flows should be required to address money laundering and the existence of tax havens. 相似文献
194.
Martin Bliemel Ricardo Flores Saskia De Klerk 《Entrepreneurship & Regional Development》2019,31(1-2):133-149
ABSTRACTInfrastructure is commonly conceptualized as a set of facilities that play a critical role in facilitating activities by individuals and organizations. Conventionally, infrastructure is tightly linked to publicly funded projects that facilitate access to key resources and enable diverse activities. Within entrepreneurial clusters research, infrastructure includes universities, research institutions and telecommunication technologies that facilitate entrepreneurial activities. These capital-intensive investments seek to facilitate start-ups emergence by aiding access to markets and development of ideas. Accelerators facilitate the same activities and have only recently been conceptualized as start-up infrastructure. This study builds upon this research stream by elaborating on how accelerators can play this meaningful role at the cluster level. Specifically, and by relying on the analysis of empirical evidence from three distinct studies, we uncover how accelerators provide tangible and intangible dimensions of start-up infrastructure to form a positively reinforcing cycle of entrepreneurial activities. Additionally, our findings allow us to push further the idea that start-up infrastructure development can be an endogenous process involving multiple actors within the cluster. Our empirical findings and the theoretical insights derived from them have meaningful implications for the aforementioned literature, as well as start-up practitioners and policymakers linked to the funding of entrepreneurial clusters. 相似文献
195.
机构投资者与个人投资者是证券市场的重要组成部分,其非理性程度直接影响着市场的健康稳定。本文基于有情境元素的问卷调查,构建包含投资者类别为自变量,年龄和性别为控制变量,16种常见非理性行为为因变量的分析框架,实证检验机构投资者与个人投资者非理性行为差异。结果表明,中国机构投资者与个人投资者都存在严重的非理性行为;相比机构投资者,个人投资者非理性程度更为严重;机构投资者与个人投资者在偏好逆转、证实性偏差、沉没成本、模糊厌恶、处置效应和损失厌恶方面存在显著差异。本研究为投资者防范非理性行为提供建议,为市场稳定发展提供参考。 相似文献
196.
《Futures》2015
The Scenario Analysis methods have often been used by policy makers as an instrument to manage uncertainty and to support the shaping of long-term economy policies. In this research, we apply Scenario Analysis in order to identify the barriers affecting the decision to invest in the Concentrated Solar Power (CSP) sector in Morocco. Our results aim at facilitating the process of defining different paths in strategic political and policy actions. Using data from a survey on a panel of experts, the Cross Impact Analysis (CIA) and the Cross Impact Matrix System (SMIC) techniques are applied. The advantage of these techniques is that they allow including in the analysis the interlinkages between the events that will define the future scenarios. However, their limitation is that the number of events analyzed cannot be too high since the information collected from the experts increases exponentially according to the number of events introduced. We thus expand our analysis with a new methodological approach, combining the use of prospective and statistics techniques. This approach allows addressing the mentioned limitation and applying these techniques, initially restricted to 6 events in its common application, to a large number of events. The results show that uncertainty and informality would be key factors in promoting the arrival of companies in this sector. Additionally, regarding companies that already have a presence in Morocco’s renewable energy sector, an increase in activity would be achieved through improvements in the easing of financial and legal barriers. 相似文献
197.
蒋女士为H省直高校的教师,收入稳定,丈夫马先生为某企业的土建工程师,家庭年度有9万结余,再过4个月家庭将有新成员加入,是典型的形成期过渡到成长期的家庭。本理财规划方案基于蒋女士家庭基本状况及财务状况基础上,编制出其家庭资产负债表和月、年收入支出表,分析家庭财务状况、并查找问题,分析其家庭现阶段资产配置的不妥之处,并给出相应的规划建议。 相似文献
198.
In order to protect fund investors against conflicts of interest with fund management companies, US funds have mandatory independent directors, but this obligation is not required under the European Union Undertakings for Collective Investment in Transferable Securities (UCITS) Directive. Nevertheless, a considerable number of UCITS funds do have independent directors. Whether independent directors should also be mandatory in Europe has been a topic of ongoing debate. Using a sample of Luxembourg UCITS, we test the hypothesis that more independent boards add value for investors through lower costs and/or better investment performance, but we fail to find supporting evidence, even for funds with a higher risk of conflicts of interest. Oversight by independent depositaries and institutional shareholders does not seem to be effective either. It appears that board attitude and the sponsor distribution model are more important since we find evidence that boards that prioritise cost monitoring have lower costs and that independent sponsor funds have better performance. These results question the effectiveness of self-regulation or formal regulation requiring independent board members. 相似文献
199.
"创新券"是针对中小企业普遍存在的创新力度不足而采用的一项政府投入政策。其推广可以促进科技与经济的有机结合。本文从多方面指出了推广创新券支持中小企业创新应注意的几个问题。 相似文献
200.
In a first for South Africa, this article draws on literature on infrastructure productivity to model dynamic economy-wide employment impacts of infrastructure investment funded with different fiscal tools. Using a dynamic computable general equilibrium model, the South African investment plan is modelled, given the infrastructure externality. Alternative fiscal scenarios to finance the policy are modelled in the article. In the long run, unemployment decreases for all types of workers under one of the scenarios. In the short run, only elementary occupation workers benefit from a decrease in unemployment; for the rest, unemployment rises. 相似文献